THE 2P-SIGMA(U)-1S-SIGMA(G) ELECTRONIC-SPECTRUM OF D-2(+)

Non-adiabatic dissociation energies are calculated for the N less-than -or-equal-to 5 vibration-rotation levels of the ground electronic stat e of D2+, together with the seven vibration-rotation levels of the fir st excited electronic state, using a transformed Hamiltonian and an ar tificial-channels scattering method. Coupling of rotational and electr onic angular momenta is included. Relativistic and radiative correctio ns are made to give dissociation energies, that of the 0,0 level of th e ground electronic state agreeing with experiment. In particular, cal culated electronic transition energies are in excellent agreement with the available experimental values. The complete calculated 2psigma(u) -1ssigma(g) vibronic band system of D2+ is reported.